I enjoyed the show last night. I think the problem with the guys is that they're trying too hard to be like Clarkson and co. there are a few times during ep1 and 2 where they'll laugh at what the other has said when it just isn't funny, which results in those moments being a bit cringe. I think they'd trying to make that same chemistry most people love but it's just not quite working. During the lambo parts Matt was quite funny though, interestingly in the stuff where he didn't say anything - like the marriage or the one night stand quirk where he just looked goofy and towards the Lambo - that kind of thing is funny even if it is all scriped, but some of it is too obviously scripted and it just doesn't work as well.
I'm sure Clarkson and co. didn't have the chemistry they have now when they first started out either though so there's plenty of reason to be positive about them - they're all likeable imo which is a fundamental and basic foundation.
The thing I love about TG as well though is the editing and photography and sound usage, it really is first class. Those guys are very creative, clever and talented, nice to see that none of that has changed.